Add a watermark to a PDF

Stamp a word like Draft or Confidential, or your logo, across the pages of a PDF. It all happens in your browser, so your file stays on your device.

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Add Watermark at a glance

Add Watermark is a free tool that places text or an image over the pages of a PDF to show who owns it or what stage it is at. You set the opacity, angle and position or tile it across the page, then choose which pages get it. It runs in your browser, so nothing is uploaded.

Limits · Files up to 1 GB each · Up to 2 files at a time · Free and unlimited, no account needed

Last updated October 19, 2026

How to use Add Watermark

Choose your PDF
Pick a file or drop it on the page. It opens right here in your browser.
Set up the watermark
Type your text or add an image. Adjust the opacity, angle and position, or tile it across the page.
Pick pages and save
Apply it to every page or only the ones you choose. Then download your watermarked PDF.

What Add Watermark does

Adding a watermark means placing text or an image over the pages of a PDF, usually faint and at an angle, to show who owns it or what stage it is at. Wispdf does this in your browser. You pick the text or image, set the opacity, angle and position, or tile it across the page, then choose which pages get it.

People use it to

Mark a contract draft so nobody mistakes it for the signed version
Put your studio logo on photo proofs before a client has paid
Label practice exam handouts as Sample before printing them for class

What's included

Text or image

Use a word like Draft or Confidential, or place your logo or another image on the page.

Opacity and angle

Keep it faint so the page reads clearly, and set the angle, such as a diagonal across the page.

Place or tile

Put a single watermark exactly where you want it, or repeat it across the whole page.

Choose the pages

Watermark every page in the file, or only the pages you pick.

Where your file goes

Add Watermark runs entirely on your device. Your file never leaves your browser, so there is nothing for us to store or delete.

On your deviceFree and unlimited, no account needed.

How privacy works at Wispdf

Questions about Add Watermark

Is adding a watermark to a PDF free?

Yes. Add Watermark on Wispdf is free and unlimited, and you do not need an account. Because it runs on your device, there is no daily limit and no cap on how many files you watermark. The practical limit is your device's memory, which is comfortably around 1 GB of PDFs on a computer and less on a phone.

Do you upload my PDF to add the watermark?

No. Add Watermark runs in your browser, on your device. Your PDF is never uploaded to our servers, so nobody at Wispdf can see it and there is nothing to delete afterward. That is useful when the file you are marking is private, such as a draft agreement or an internal report.

How do I add my logo as a watermark?

Open Add Watermark, choose your PDF, then pick the image option and select your logo. Lower the opacity so the content underneath stays readable, set the angle and position, or tile the logo across the page. Choose which pages should carry it, then save. Your logo file stays on your device as well.

Will the watermark make my text hard to read?

That depends on the opacity you choose in Add Watermark. A low opacity keeps the watermark faint, so the words underneath stay easy to read, while a higher one makes it stand out. A light diagonal watermark is a common choice for drafts. If the first try feels too strong, run your original file again with a lower setting.

Can I watermark a PDF on my phone or Mac?

Yes. Add Watermark works in any modern browser on Windows, Mac, Linux, iPhone, iPad, Android and Chromebook. There is no app to install. Open the page, choose your PDF, set up the watermark and save. A phone has less memory than a computer, so very large files are more comfortable on a laptop or desktop.

Can someone remove a watermark from my PDF?

A watermark is a visible label. It makes clear who a file belongs to and discourages reuse, yet a person with editing software and enough patience may be able to take it out. For more protection, watermark the file first, then use Protect PDF to add a password and limit editing. Both tools run on your device.